wafermap

Browser-first wafer map visualization for semiconductor test data.

Project Portal: Docs & Interactive Demos →

Overview

wafermap renders interactive wafer maps from semiconductor prober output. Hard bins, soft bins, test values, retest runs, edge exclusion, and spec limits are native inputs.

• Geometry inference — pass full physical dimensions or raw prober step positions; die pitch, wafer diameter, and coordinate origin are resolved automatically
• renderWaferMap — interactive canvas map with toolbar, zoom/pan, tooltips, die selection, and summary panel; pass an array of results for a lot-level gallery with shared controls and click-to-expand
• analyzeWaferMap / analyzeWaferLot — spatial analysis across rings, quadrants, sectors, and reticle positions; failure cluster detection; lot trend series
• Pure ES modules, no server, no runtime dependencies — works in React, Svelte, Vue, plain HTML, or a Web Worker

Quick start

npm install @paulrobins/wafermap

import { buildWaferMap } from '@paulrobins/wafermap';
import { renderWaferMap } from '@paulrobins/wafermap/canvas-adapter';

const result = buildWaferMap({
  results: rows.map(r => ({ x: +r.x, y: +r.y, hbin: +r.hbin })),
});

renderWaferMap(document.getElementById('map'), result);

Docs

• Quick start
• Guide
• API Reference
• Glossary
• Demo catalog

Local preview

npm install
npm run dev

Serves the documentation site locally from docs/, including the example pages under docs/examples/.